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Soft generator

A generator and capacitor technology, which is used in heating surgical instruments, parts of surgical instruments, medical science, etc., can solve problems such as unfavorable power supply current, series resonance splitting, and complex circuit engineering.

Inactive Publication Date: 2013-12-04
爱尔博电子医疗仪器股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Although this circuit topology is suitable for voltage supply sources, the circuit also has disadvantages: namely, if according to Figure 5b It is clear that a series connection occurs in the case of a large load resistance due to the interaction of the input SRC and PRC and at the same time due to the small value of the associated input resistance necessitating an unfavorably large supply current to achieve the desired output Resonance splits and shifts violently
However, the circuit engineering required to implement this measure is usually complex

Method used

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Embodiment Construction

[0032] Figure 1a A resonant circuit according to the invention is shown having an inductor Lp connected in parallel to the input terminals A, B, a series resonant circuit SRC with an inductor L2 and a capacitor C2, a capacitor Cp connected in parallel to the output terminals C, D and Load RL.

[0033] use according to Figure 1a The topology avoids the role of the PRC by replacing the role of the PRC with a shunt inductor Lp Figure 4a with Figure 5a disadvantages of the topologies described in and known from the prior art and thus prevent resonance splitting. By additionally inserting a capacitor Cp, it is additionally ensured that the circuit operates in series resonance with a large load resistance RL. In this way, it is no longer necessary to enter the SRC. In existing transformers, the series resonant capacitor C2 can be partially reconfigured and the series resonant inductor L2 can even be completely reconfigured to the primary side of the transformer to guarantee ...

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Abstract

A high-frequency surgical generator for generating high efficiency outputs that can be operated in resonance over a wide load resistance range. The high-frequency surgical generator includes, a first stage circuit for generating high-frequency power and a second stage circuit coupled to the first state circuit. The second stage circuit includes an input and an output and a series resonant circuit located between the input and the output. The second stage circuit further includes an inductor that is switched parallel to the input and a capacitor that is switched parallel to the output.

Description

technical field [0001] The invention relates to a HF (high frequency) surgical generator for generating a high frequency output according to the preamble of claim 1, the HF surgical generator having a first part for generating HF electrical energy, said first part being connected to the second Two parts are coupled, wherein the second part has an input (A, B) and an output (C, D), and wherein a series resonant circuit is arranged at the input (A, B) and output (C, D) of the second circuit ( C, D) Between. Background technique [0002] The continued development of HF surgery in recent years has brought about procedures of contact coagulation (tumor resection), (underwater) tissue sectioning and methods of (underwater) tissue vaporization. HF generators operating at high continuous output and very high pulse output and / or long activation times are used to perform these procedures. At the same time, however, the requirements on the electromagnetic compatibility (EMC) of the H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12
CPCA61B2018/00892A61B18/1233A61B2018/00702
Inventor 海口·夏尔弗罗里安·艾斯勒
Owner 爱尔博电子医疗仪器股份有限公司